High pitch squeal, buzz, no picture

Check and replace its color wheel. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

A high pitch sound can be a capacitor losing power it would sound a bit like a fire work. most have back up on the board but it put more pressure on them the more times you use the tv. would check them and replace. all of them can be 5 in a row in some models.

Check the solder joints on the vertical IC. If you reflow the joints and the problem persists replace the IC. Buzzing sound may be the flyback or something dealing with high voltage. Take the back of the TV off and see where the sound is coming from and see if you can see anything when you turn the TV on. Stay away from the TV and don't touch anything when turning it on.

Check the horizontal output section circuit. It sounds that the LOT {Line Output Transformer} has damaged.

The high-pitch squeal is from the power supply, caused by a short circuit. The usual cause is a shorted horizontal output transistor. I believe this model uses a 2SD1556, but I'm not certain. I don't have the service manual for this model, but that part is used in several other 32- and 36-inch models.

While the horizontal output can fail on its own, it's usually because of other problems. A large-tube TV like this is hard to work on, and you might want to let a professional technician check it and give an estimate for the repair.

I am about to post a in depth guide about how to fix this problem. It's because a capacitor inside the TV has blown which causes the buzzing high pitched noise. It's really easy to fix however and only costs about £1 / $2 to sort out.

You can read a similar guide here http://www.fixya.com/support/r741402-polaroid_flm_373b_lcd_tv_black_screen but I will shortly be uploading a guide on the buzzing problem!

That's good you have time and patience.
You should have service manual and electronics knowledge to recognize and test / check parts in tv.
Problem is in Pin Out area of tv and you can have new parts from Panasonic Parts.
You can buy service manual from Service Manual net
Good Luck.

prob high volt transformer tech may be able to repair replace cost high. 200 orso

may be a problem with power supply.

You might have a short causing the set not to start. Probably in the horizontal/high voltage circuit. The buzzing sound that you're hearing is the power supply overloaded. Stargazer